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Radicchio di Chioggia

ingredient / ingredient-radicchio-chioggia

キオッジャ・ラディッキオ / Cichorium intybus L. var. silvestre

Radicchio di Chioggia is a red chicory that forms a round head. It includes 2 types, early and late.

On this page (7 sections)
  1. Overview
  2. Sources for this overview (2)
  3. Topic hubs
  4. Follow the connections
  5. Related entries (10)
  6. Composition and content (1)
  7. How processing and cooking change it (1)
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Reading the bitterness

The EU geographical-indication (PGI) specification (2008) defines Radicchio di Chioggia as a red chicory belonging to the silvestre variety (var. silvestre) of the species Cichorium intybus in the Asteraceae family, and as consisting of 2 types, early and late. The spelling inthybus also appears in the original text, but this is a normalized spelling as Cichorium intybus.

Article 5 (production and harvesting techniques) of the 2003 production specification (disciplinare) specifies harvesting only as cutting the root below the head; the subsequent process is limited to trimming (toelettatura) in the field or at a collection point. The terms shading and blanching (forzatura and imbianchimento), which appear in specifications for the Verona late type and Treviso late type, do not occur anywhere in the full text of this disciplinare for either the precoce or tardivo type. However, this is the negative fact that the document does not contain those terms and does not comprehensively deny practices at production sites.

Sources for this overview

  1. Summary of requirements: Radicchio di Chioggia PGI

    European Commission / 2008 / government document / full text checked

    Checked for this overview: Confirms the species and variety classification and the provision for 2 early/late types in the EU PGI specification.

  2. Disciplinare di produzione - Radicchio di Chioggia IGP

    / 2003 / other / full text checked

    Checked for this overview: Confirms the description of harvesting and trimming in the disciplinare original text and the absence of the shading-and-blanching process.

Follow the connections

Radicchio di Chioggia →is a type of→ chicory

Radicchio di Chioggia →'s standard lacks the proce…→ radicchio forcing and blanching

Structured claims — open a section to read each claim's confidence, evidence and limits

Composition and content (1)

Radicchio di Chioggia is a type of chicorysupported

Scope: Classification under the EU PGI specification

Note: Includes 2 types, early and late.

Defined as belonging to the family Asteraceae, genus Cichorium, species intybus, variety silvestre, with 2 types, early and late.
Limitations: The original text has the spelling "inthybus," which is normalized here to Cichorium intybus.
Source: Summary of requirements: Radicchio di Chioggia PGI (European Commission, 2008) · full text checked
Show dataingredient-radicchio-chioggia —is_a_type_of→ ingredient-chicory
claim: clm-chioggia-chicory / type: taxonomy / updated: 2026-08-31

How processing and cooking change it (1)

Radicchio di Chioggia's standard lacks the process of radicchio forcing and blanchingsupported

Scope: The full text of Art. 5 (Tecniche di produzione e raccolta) of the original Italian-language disciplinare

Note: After harvest (raccolta), only toelettatura (trimming) is specified, and there is no mention of the forzatura-imbianchimento (forced blanching in the dark) process found for the Treviso tardivo, Castelfranco, and Verona tardivo types. This holds for both the precoce and tardivo types.

Harvest is specified only by the method "recidendo la radice sotto l'inserzione delle foglie basali del grumolo" (in translation: "cutting the root below the base of the head's basal leaves"), and the only process that follows is toelettatura (trimming with the traditional sickle-shaped roncole knife) in the field or at the collection point. The words forzatura (forcing) and imbianchimento (blanching) do not appear anywhere in the full text of the disciplinare.
Limitations: The "absence of the process" is a negative finding based on the fact that these words could not be found in the body of the disciplinare; it does not exhaustively rule out the practice at actual production sites.
Source: Disciplinare di produzione - Radicchio di Chioggia IGP (2003) · full text checked
Show dataingredient-radicchio-chioggia —lacks_process→ process-radicchio-forcing-blanching
claim: clm-chioggia-no-forcing / type: processing / updated: 2026-09-01

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